US4431267A - Optical system which provides a collimated light beam - Google Patents
Optical system which provides a collimated light beam Download PDFInfo
- Publication number
- US4431267A US4431267A US06/315,690 US31569081A US4431267A US 4431267 A US4431267 A US 4431267A US 31569081 A US31569081 A US 31569081A US 4431267 A US4431267 A US 4431267A
- Authority
- US
- United States
- Prior art keywords
- holder
- lenses
- locking element
- optical system
- semiconductor laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/022—Mountings, adjusting means, or light-tight connections, for optical elements for lenses lens and mount having complementary engagement means, e.g. screw/thread
Definitions
- the invention relates to an optical system which provides a collimated light beam, comprising a tubular holder, a semiconductor laser incorporated in the holder, and a system of lenses incorporated in the holder, the focus of which coincides with a laser element incorporated in the semiconductor laser.
- an optical system according to the invention is characterized in that in the axial direction of the holder the semiconductor laser is positioned against an abutment, that a resilient element is provided between the system of lenses and the abutment, and that a locking element is present on the side of the system of lenses remote from the resilient element, which locking element, after axial adjustment in the holder, is fixed in such a location that the system of lenses, after moving in the axial direction against the pressure of the resilient element, is in the position in which its focus coincides with the laser element in the semiconductor laser.
- the semiconductor laser is moved in the holder until it is positioned against the abutment and is fixed in that position, then the resilient element and the system of lenses and the locking element are inserted in the holder.
- This assembly is then placed in an aligning apparatus, the locking element with the system of lenses is moved in the direction of the laser against spring action and when it is established in the aligning apparatus that the optical system provides a collimated light beam, so that the emanating rays extend parallel, the locking element is fixed in the holder, so that the system of lenses is simultaneously and accurately adjusted.
- Such an optical system can be easily manufactured and has wide application possibilities. For example, it is suitable for use in video disc players, in digital optical recording, in optical displacement transducers based on the interferometric principle, and for many other applications.
- the tubular holder comprises on its inner surface at least three ribs, the tops of which are situated accurately on the surface of a circular cylinder for accurate radial adjustment of at least the system of lenses.
- the system of lenses and possible other components of the optical system are additionally adjusted very accurately in the holder in a radial direction.
- a metal locking element having lugs is provided, the lugs engaging about circumferential parts of the cylinder lens in such manner that upon rotating the locking element the cylinder lens is adjustable tangentially.
- the astigmatism of the laser can be corrected.
- the oval beam of rays changes into a circular beam.
- the locking element with the lugs is a handy means to adjust the cylinder lens.
- the locking element can be fixed with respect to the holder in various manners. It has proved to be particularly favorable to construct the locking element as a metal ring and the holder as a metal tube, the holder, at the location where the locking element is present, comprising at least three blind holes of which the part of material still present is melted by means of heating by a laser pulse and after solidification forms a joint between the holder and the locking element. As a result of this a rigid permanent fixation is obtained, with the position being adjustable very accurately.
- an annular metal element may be provided between the system of lenses and the semiconductor laser, the holder in the location where the annular element is present comprising at least three blind holes in which part of the material still present is melted by means of heating by a laser pulse and after solidification forms a joint between the holder and the annular metal element.
- the holder, the locking element and the annular element may be formed from any material, these parts preferably consist of a metal, such as aluminum. It is then ensured that the optical system, once adjusted, will accurately remain in position, that no mutual stresses occur in the case of temperature variations, and that the material has sufficient rigidity to prevent variation of the mutual position.
- FIG. 1 shows a first embodiment of the optical system to obtain a collimated beam
- FIG. 2 is a side elevation of the holder
- FIG. 3 shows a cylinder lens and an associated locking element
- FIG. 4 shows a second embodiment of the optical system.
- FIG. 1 shows a first embodiment of an optical system which provides a collimated light beam.
- a holder preferably of aluminum, has an abutment 2.
- a semiconductor laser 3 comprises a flange 4; said flange engages with its upper surface the abutment 2 and with its side face the inner wall of holder 1.
- the semiconductor laser 3 is fixed in the holder by means of bent-over lugs 5 which are formed from material of an end portion of the holder.
- the holder furthermore comprises a system of lenses 6, as well as a cylinder lens 7.
- a locking element 8 is provided at the laser-remote end of the holder, while an annular element 9 is present between the laser and the system of lenses and a second annular element 10 is present between the system of lenses 6 and the cylinder lens.
- a resilient element in the form of a helical compression spring 11 is present between the abutment 2 and the annular element 9.
- the inner surface of the holder 1 preferably comprises three ribs 12, as shown in FIG. 2.
- the tops of the ribs are provided accurately on the surface of a circular cylinder by means of a calibrating tool.
- the lenses 6 and 7 can thus be adjusted radially very accurately.
- At the area of the ring furthermore three blind holes 13 are provided in the holder (see also FIG. 2), while at the area of the ring 9 three further blind holes 14 are present in the holder.
- the annular element 8 comprises two lugs 15 which engage around flattened sides 16 of cylinder lens 7, see FIG. 3.
- the focus of the system of lenses 6 must coincide very accurately with the light-emitting laser element 17 of the p-n laser 3.
- the locking ring 8 is moved in the direction of the semiconductor laser 3.
- ring 10 system of lenses 6 and ring 9 also move so that spring 11 is compressed.
- the fixation is preferably obtained by heating the material in the blind holes 13 by means of a laser pulse.
- ring 9 may also be connected permanently to holder 1.
- the joint via melting of material in hole 14 by means of heating with a laser pulse is to be preferred.
- the holder and the rings 8, 9 and 10 are preferably manufactured from aluminum.
- the cylinder lens 7 serves to correct for the astigmatism of the laser. Rotating the lens 7 causes the emanating beam of rays to change from an oval shape into a circular shape. Rotating the cylindrical lens is carried out by rotating locking element 8; the lugs 15 engaging about the flattened sides 16 cause a simultaneous rotation of the cylinder lens. The connection of the locking element 8 to the holder takes place after adjusting the system of lenses 6 and the cylinder lens 7.
- FIG. 4 shows a simplified construction of an optical system to obtain a collimated light beam.
- a semiconductor laser 23 is placed in a holder 21 having an abutment 22.
- a spring 25 is present between a flange 24 of the semiconductor laser and a ring 29.
- a lens 26 and a locking ring 28 complete the optical system.
- the lens 26 is preferably a known bi-aspherical lens. It can be manufactured, for example, from synthetic resin.
- lens 26 is moved relative to the laser device against the pressure of spring 25 by means of the adjustment of locking ring 28.
- locking ring 28 is connected, preferably again by heating by means of a laser pulse, as described with reference to FIG. 1.
- ring 29 may also be fixed in this manner.
- the device shown in FIG. 4 may be used in situations where the correction for astigmatism of the semiconductor laser is not necessary.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
- Lens Barrels (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Description
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8006061 | 1980-11-06 | ||
NLAANVRAGE8006061,A NL182031C (en) | 1980-11-06 | 1980-11-06 | OPTICAL SYSTEM FOR DELIVERING A COLLIMATED LIGHT BEAM. |
Publications (1)
Publication Number | Publication Date |
---|---|
US4431267A true US4431267A (en) | 1984-02-14 |
Family
ID=19836120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/315,690 Expired - Lifetime US4431267A (en) | 1980-11-06 | 1981-10-28 | Optical system which provides a collimated light beam |
Country Status (18)
Country | Link |
---|---|
US (1) | US4431267A (en) |
JP (1) | JPS57109910A (en) |
KR (1) | KR830008186A (en) |
AT (1) | AT387097B (en) |
AU (1) | AU543980B2 (en) |
BE (1) | BE890983A (en) |
CA (1) | CA1183250A (en) |
CH (1) | CH653462A5 (en) |
DD (1) | DD201826A5 (en) |
DE (1) | DE3142630C2 (en) |
ES (1) | ES8300216A1 (en) |
FR (1) | FR2493576A1 (en) |
GB (1) | GB2087591B (en) |
HK (1) | HK27785A (en) |
IT (1) | IT1140042B (en) |
NL (1) | NL182031C (en) |
SE (1) | SE450439B (en) |
SG (1) | SG51884G (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4541689A (en) * | 1983-09-19 | 1985-09-17 | Optical Storage International | Friction wedge alignment system for laser diode collimator pens |
US4592627A (en) * | 1983-12-07 | 1986-06-03 | U.S. Philips Corporation | Single collimator lens having one aspherical surface |
US4641023A (en) * | 1983-11-16 | 1987-02-03 | Kabushiki Kaisha Toshiba | Optical head |
US4647155A (en) * | 1985-03-08 | 1987-03-03 | International Business Machines Corporation | Multi-laser optical signal recorders |
US4697880A (en) * | 1984-04-12 | 1987-10-06 | Telefunken Electronic Gmbh | Optical system for providing a collimated light beam |
US4740057A (en) * | 1985-12-18 | 1988-04-26 | Hughes Aircraft Company | Wire like column spacers under a force in excess of Euler's column load |
US4856870A (en) * | 1987-04-09 | 1989-08-15 | Oce-Nederland B.V. | Laser module |
US4904062A (en) * | 1988-05-20 | 1990-02-27 | Alps Electric Co. Ltd. | Collimating lens for use in optical memories |
US4923281A (en) * | 1988-11-01 | 1990-05-08 | Symbol Technologies Inc. | Laser diode focusing module, method of fabricating, and method of using |
US5548450A (en) * | 1993-12-22 | 1996-08-20 | Samsung Aerospace Industries, Ltd. | Device for adjusting air gap between lenses |
FR2737784A1 (en) * | 1995-08-10 | 1997-02-14 | Asahi Optical Co Ltd | LENS SUPPORT DEVICE |
US5617258A (en) * | 1995-10-25 | 1997-04-01 | Plc Medical Systems, Inc. | Non-reusable lens cell for a surgical laser handpiece |
EP1174748A2 (en) * | 2000-07-17 | 2002-01-23 | Kabushiki Kaisha Toshiba | Optical lens unit having a mechanism for adjusting the focal point of the optical lens |
US20040012965A1 (en) * | 2002-07-16 | 2004-01-22 | Kenji Yoneda | Light irradiating unit |
WO2005031878A1 (en) * | 2003-09-26 | 2005-04-07 | Siemens Aktiengesellschaft | Optical module and optical system |
US20050180486A1 (en) * | 2004-02-13 | 2005-08-18 | Tung Hsin C. | Laser module for circular saw |
US7114861B1 (en) * | 2005-05-09 | 2006-10-03 | Lecc Technology Co., Ltd. | Laser module with trimming capacity |
US20070291379A1 (en) * | 2004-10-02 | 2007-12-20 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Laser machine monitoring |
US20110028949A1 (en) * | 2009-07-29 | 2011-02-03 | Lensx Lasers, Inc. | Optical System for Ophthalmic Surgical Laser |
US20110044070A1 (en) * | 2009-08-18 | 2011-02-24 | Sharp Kabushiki Kaisha | Light source device |
CN103278908A (en) * | 2013-06-21 | 2013-09-04 | 嘉善加斯戴克医疗器械有限公司 | Laser beam adjusting device through hand wheel |
DE102016117202A1 (en) | 2016-09-13 | 2018-03-15 | Schott Ag | Apparatus and method for aligning a light beam |
US20180354079A1 (en) * | 2017-06-08 | 2018-12-13 | Trumpf Laser Gmbh | Protective glass with transponder and installation aid and associated laser tool |
US10444447B2 (en) | 2016-09-13 | 2019-10-15 | Schott Ag | Assembly and method for aligning a light beam |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3413749A1 (en) * | 1984-04-12 | 1985-10-17 | Telefunken electronic GmbH, 7100 Heilbronn | Optical system |
JPS6271613U (en) * | 1985-07-30 | 1987-05-07 | ||
DE3913879A1 (en) * | 1989-04-27 | 1990-10-31 | Diehl Gmbh & Co | Adjusting optical element to sensor - using holder adjusted radially and/or axially and then made rigid by laser welding |
JP2684219B2 (en) * | 1989-07-05 | 1997-12-03 | 三菱電機株式会社 | Optical semiconductor module |
CH681493A5 (en) * | 1991-02-20 | 1993-03-31 | Peter Gerber | |
US5299066A (en) * | 1992-08-12 | 1994-03-29 | Miles, Inc. | Conical lens mount with snap-in lens clamp |
DE4237775C1 (en) * | 1992-11-09 | 1994-01-20 | Rodenstock Optik G | Optical system with a lens system and a light source |
DE19702573C2 (en) * | 1997-01-24 | 2003-11-13 | Sick Ag | Optical device with an adjustable holding device |
JP6004637B2 (en) * | 2010-12-06 | 2016-10-12 | キヤノン株式会社 | LENS UNIT, IMAGE READING DEVICE, AND LENS UNIT MANUFACTURING METHOD |
DE102012213193B4 (en) | 2012-07-26 | 2023-09-14 | Coretronic Corporation | ARRANGEMENT OF OPTICAL SEMICONDUCTOR ELEMENTS |
Citations (9)
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---|---|---|---|---|
US870535A (en) * | 1907-04-25 | 1907-11-12 | Bausch & Lomb | Projection apparatus. |
FR430551A (en) * | 1910-08-11 | 1911-10-19 | Gaston Victor Justin Guilbert | Capacitor for projection devices |
GB587090A (en) * | 1945-01-02 | 1947-04-14 | Kapella Ltd | Improvements in or relating to bezel stops for lenses |
US3220309A (en) * | 1962-11-05 | 1965-11-30 | Varo | Lens mount utilizing cemented sections |
US3351408A (en) * | 1963-11-08 | 1967-11-07 | John J Krewalk | Sunlight-filtering ocular adapter for telescopes |
DE2236261A1 (en) * | 1971-12-01 | 1973-06-14 | Jenoptik Jena Gmbh | LENS CONTAINING A FILLING FRAME AND AT LEAST TWO OPTICAL LINKS |
US3763543A (en) * | 1970-12-15 | 1973-10-09 | Leitz Ernst Gmbh | Method of providing the cylindrical inner surface of a lens mount with rolls and lens mount provided therewith |
DE2623389A1 (en) * | 1975-05-27 | 1976-12-02 | Noane Georges Le | DEVICE FOR CONNECTING A LASER EFFECT DIODE TO A LIGHT GUIDE |
US4203652A (en) * | 1977-02-15 | 1980-05-20 | Canon Kabushiki Kaisha | Beam shaping optical system |
Family Cites Families (7)
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GB660865A (en) * | 1948-10-01 | 1951-11-14 | Leitz Ernst Gmbh | Holders for objectives for microscopes |
GB925375A (en) * | 1960-12-02 | 1963-05-08 | Kamera & Kinowerke Dresden Veb | Improvements in or relating to means for focusing the objective lens of a slide projector |
US3424524A (en) * | 1966-05-31 | 1969-01-28 | Ncr Co | Micro-image display apparatus |
DE2059814C3 (en) * | 1969-12-11 | 1979-02-01 | Paul S. Del Mar Calif. Kempf (V.St.A.) | Socket for optical elements |
US3861786A (en) * | 1973-05-17 | 1975-01-21 | Teletype Corp | System for mounting an optical lens in a holder for limited movement along a fixed axis |
NL7608561A (en) * | 1976-08-02 | 1978-02-06 | Philips Nv | OPTICAL READING UNIT FOR SCANNING A RECORD BEARING WITH A RADIATION-REFLECTING INFORMATION STRUCTURE. |
US4307934A (en) * | 1978-05-08 | 1981-12-29 | General Dynamics, Pomona Division | Packaged fiber optic modules |
-
1980
- 1980-11-06 NL NLAANVRAGE8006061,A patent/NL182031C/en not_active IP Right Cessation
-
1981
- 1981-10-28 US US06/315,690 patent/US4431267A/en not_active Expired - Lifetime
- 1981-10-28 DE DE3142630A patent/DE3142630C2/en not_active Expired
- 1981-11-02 JP JP56176297A patent/JPS57109910A/en active Pending
- 1981-11-02 GB GB8132997A patent/GB2087591B/en not_active Expired
- 1981-11-03 IT IT24837/81A patent/IT1140042B/en active
- 1981-11-03 SE SE8106472A patent/SE450439B/en not_active IP Right Cessation
- 1981-11-03 CH CH7026/81A patent/CH653462A5/en not_active IP Right Cessation
- 1981-11-03 KR KR1019810004207A patent/KR830008186A/en unknown
- 1981-11-03 AT AT0470681A patent/AT387097B/en not_active IP Right Cessation
- 1981-11-04 ES ES506831A patent/ES8300216A1/en not_active Expired
- 1981-11-04 DD DD81234630A patent/DD201826A5/en not_active IP Right Cessation
- 1981-11-04 BE BE0/206434A patent/BE890983A/en not_active IP Right Cessation
- 1981-11-04 AU AU77102/81A patent/AU543980B2/en not_active Ceased
- 1981-11-04 FR FR8120680A patent/FR2493576A1/en active Granted
- 1981-11-05 CA CA000389476A patent/CA1183250A/en not_active Expired
-
1984
- 1984-07-20 SG SG518/84A patent/SG51884G/en unknown
-
1985
- 1985-04-04 HK HK277/85A patent/HK27785A/en unknown
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FR430551A (en) * | 1910-08-11 | 1911-10-19 | Gaston Victor Justin Guilbert | Capacitor for projection devices |
GB587090A (en) * | 1945-01-02 | 1947-04-14 | Kapella Ltd | Improvements in or relating to bezel stops for lenses |
US3220309A (en) * | 1962-11-05 | 1965-11-30 | Varo | Lens mount utilizing cemented sections |
US3351408A (en) * | 1963-11-08 | 1967-11-07 | John J Krewalk | Sunlight-filtering ocular adapter for telescopes |
US3763543A (en) * | 1970-12-15 | 1973-10-09 | Leitz Ernst Gmbh | Method of providing the cylindrical inner surface of a lens mount with rolls and lens mount provided therewith |
DE2236261A1 (en) * | 1971-12-01 | 1973-06-14 | Jenoptik Jena Gmbh | LENS CONTAINING A FILLING FRAME AND AT LEAST TWO OPTICAL LINKS |
DE2623389A1 (en) * | 1975-05-27 | 1976-12-02 | Noane Georges Le | DEVICE FOR CONNECTING A LASER EFFECT DIODE TO A LIGHT GUIDE |
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Cited By (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4541689A (en) * | 1983-09-19 | 1985-09-17 | Optical Storage International | Friction wedge alignment system for laser diode collimator pens |
US4641023A (en) * | 1983-11-16 | 1987-02-03 | Kabushiki Kaisha Toshiba | Optical head |
US4592627A (en) * | 1983-12-07 | 1986-06-03 | U.S. Philips Corporation | Single collimator lens having one aspherical surface |
USRE32988E (en) * | 1983-12-07 | 1989-07-18 | U.S. Philips Corp. | Single collimator lens having one aspherical surface |
US4697880A (en) * | 1984-04-12 | 1987-10-06 | Telefunken Electronic Gmbh | Optical system for providing a collimated light beam |
US4647155A (en) * | 1985-03-08 | 1987-03-03 | International Business Machines Corporation | Multi-laser optical signal recorders |
US4740057A (en) * | 1985-12-18 | 1988-04-26 | Hughes Aircraft Company | Wire like column spacers under a force in excess of Euler's column load |
US4856870A (en) * | 1987-04-09 | 1989-08-15 | Oce-Nederland B.V. | Laser module |
US4904062A (en) * | 1988-05-20 | 1990-02-27 | Alps Electric Co. Ltd. | Collimating lens for use in optical memories |
US4923281A (en) * | 1988-11-01 | 1990-05-08 | Symbol Technologies Inc. | Laser diode focusing module, method of fabricating, and method of using |
US5548450A (en) * | 1993-12-22 | 1996-08-20 | Samsung Aerospace Industries, Ltd. | Device for adjusting air gap between lenses |
CN1044158C (en) * | 1993-12-22 | 1999-07-14 | 三星航空产业株式会社 | Device for adjusting air gap between lenses |
FR2737784A1 (en) * | 1995-08-10 | 1997-02-14 | Asahi Optical Co Ltd | LENS SUPPORT DEVICE |
US5617258A (en) * | 1995-10-25 | 1997-04-01 | Plc Medical Systems, Inc. | Non-reusable lens cell for a surgical laser handpiece |
EP1174748A2 (en) * | 2000-07-17 | 2002-01-23 | Kabushiki Kaisha Toshiba | Optical lens unit having a mechanism for adjusting the focal point of the optical lens |
EP1174748A3 (en) * | 2000-07-17 | 2002-03-13 | Kabushiki Kaisha Toshiba | Optical lens unit having a mechanism for adjusting the focal point of the optical lens |
US6590720B2 (en) | 2000-07-17 | 2003-07-08 | Kabushiki Kaisha Toshiba | Optical lens unit having a mechanism for adjusting the focal point of the optical lens |
EP1382960A3 (en) * | 2002-07-16 | 2004-08-25 | CCS Inc. | Light irradiating unit |
US6945674B2 (en) | 2002-07-16 | 2005-09-20 | Ccs, Inc. | Light irradiating unit |
US20040012965A1 (en) * | 2002-07-16 | 2004-01-22 | Kenji Yoneda | Light irradiating unit |
US7268957B2 (en) | 2003-09-26 | 2007-09-11 | Siemens Aktiengesellschaft | Optical module and optical system |
WO2005031878A1 (en) * | 2003-09-26 | 2005-04-07 | Siemens Aktiengesellschaft | Optical module and optical system |
US20060222300A1 (en) * | 2003-09-26 | 2006-10-05 | Siemens Ag | Optical module and optical system |
US20050180486A1 (en) * | 2004-02-13 | 2005-08-18 | Tung Hsin C. | Laser module for circular saw |
US8445815B2 (en) | 2004-10-02 | 2013-05-21 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Laser machine monitoring |
US20070291379A1 (en) * | 2004-10-02 | 2007-12-20 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Laser machine monitoring |
US7875830B2 (en) * | 2004-10-02 | 2011-01-25 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Laser machine monitoring |
US20110100968A1 (en) * | 2004-10-02 | 2011-05-05 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Laser machine monitoring |
US7114861B1 (en) * | 2005-05-09 | 2006-10-03 | Lecc Technology Co., Ltd. | Laser module with trimming capacity |
US20110028949A1 (en) * | 2009-07-29 | 2011-02-03 | Lensx Lasers, Inc. | Optical System for Ophthalmic Surgical Laser |
US20110044070A1 (en) * | 2009-08-18 | 2011-02-24 | Sharp Kabushiki Kaisha | Light source device |
CN103278908A (en) * | 2013-06-21 | 2013-09-04 | 嘉善加斯戴克医疗器械有限公司 | Laser beam adjusting device through hand wheel |
DE102016117202A1 (en) | 2016-09-13 | 2018-03-15 | Schott Ag | Apparatus and method for aligning a light beam |
US10444447B2 (en) | 2016-09-13 | 2019-10-15 | Schott Ag | Assembly and method for aligning a light beam |
DE102016117202B4 (en) * | 2016-09-13 | 2021-04-01 | Schott Ag | Apparatus and method for aligning a light beam |
US20180354079A1 (en) * | 2017-06-08 | 2018-12-13 | Trumpf Laser Gmbh | Protective glass with transponder and installation aid and associated laser tool |
US11247299B2 (en) * | 2017-06-08 | 2022-02-15 | Trumpf Laser Gmbh | Protective glass with transponder and installation aid and associated laser tool |
Also Published As
Publication number | Publication date |
---|---|
NL182031B (en) | 1987-07-16 |
IT8124837A0 (en) | 1981-11-03 |
AU7710281A (en) | 1982-05-13 |
GB2087591B (en) | 1984-03-21 |
SG51884G (en) | 1985-03-29 |
AU543980B2 (en) | 1985-05-09 |
BE890983A (en) | 1982-05-04 |
JPS57109910A (en) | 1982-07-08 |
ATA470681A (en) | 1988-04-15 |
SE450439B (en) | 1987-06-22 |
DD201826A5 (en) | 1983-08-10 |
DE3142630A1 (en) | 1982-05-19 |
CH653462A5 (en) | 1985-12-31 |
DE3142630C2 (en) | 1984-04-26 |
ES506831A0 (en) | 1982-10-01 |
FR2493576A1 (en) | 1982-05-07 |
FR2493576B1 (en) | 1984-11-23 |
IT1140042B (en) | 1986-09-24 |
ES8300216A1 (en) | 1982-10-01 |
NL8006061A (en) | 1982-06-01 |
HK27785A (en) | 1985-04-12 |
SE8106472L (en) | 1982-05-07 |
AT387097B (en) | 1988-11-25 |
NL182031C (en) | 1987-12-16 |
GB2087591A (en) | 1982-05-26 |
KR830008186A (en) | 1983-11-16 |
CA1183250A (en) | 1985-02-26 |
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